Date: Fri, 18 Sep 2015 11:12:23 +0200 From: Palle Girgensohn <girgen@FreeBSD.org> To: freebsd-net@freebsd.org Subject: Kernel panics in tcp_twclose Message-ID: <26B0FF93-8AE3-4514-BDA1-B966230AAB65@FreeBSD.org>
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[-- Attachment #1 --] Hi, We see daily panics on our production systems (web server, apache running MPM event, openjdk8. Kernel with VIMAGE. Jails using netgraph interfaces [not epair]). The problem started after the summer. Normal port upgrades seems to be the only difference. The problem occurs with 10.2-p2 kernel as well as 10.1-p4 and 10.1-p15. https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203175 Any ideas? (kgdb) #0 doadump (textdump=<value optimized out>) at pcpu.h:219 #1 0xffffffff80949a42 in kern_reboot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:451 #2 0xffffffff80949e25 in vpanic (fmt=<value optimized out>, ap=<value optimized out>) at /usr/src/sys/kern/kern_shutdown.c:758 #3 0xffffffff80949cb3 in panic (fmt=0x0) at /usr/src/sys/kern/kern_shutdown.c:687 #4 0xffffffff80d5cf9b in trap_fatal (frame=<value optimized out>, eva=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:851 #5 0xffffffff80d5d29d in trap_pfault (frame=0xfffffe1760bc1840, usermode=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:674 #6 0xffffffff80d5c93a in trap (frame=0xfffffe1760bc1840) at /usr/src/sys/amd64/amd64/trap.c:440 #7 0xffffffff80d42cb2 in calltrap () at /usr/src/sys/amd64/amd64/exception.S:236 #8 0xffffffff809984cc in turnstile_broadcast (ts=0x0, queue=1) at /usr/src/sys/kern/subr_turnstile.c:838 #9 0xffffffff809480c0 in __rw_wunlock_hard (c=0xfffff8123b287618, tid=1, file=0x1 <Address 0x1 out of bounds>, line=1) at /usr/src/sys/kern/kern_rwlock.c:988 #10 0xffffffff80b066a4 in tcp_twclose (tw=<value optimized out>, reuse=<value optimized out>) at /usr/src/sys/netinet/tcp_timewait.c:540 #11 0xffffffff80b06ceb in tcp_tw_2msl_scan (reuse=0) at /usr/src/sys/netinet/tcp_timewait.c:748 #12 0xffffffff80b049be in tcp_slowtimo () at /usr/src/sys/netinet/tcp_timer.c:198 #13 0xffffffff809b78b4 in pfslowtimo (arg=0x0) at /usr/src/sys/kern/uipc_domain.c:508 #14 0xffffffff8095f8db in softclock_call_cc (c=0xffffffff81620bf0, cc=0xffffffff8169dc00, direct=0) at /usr/src/sys/kern/kern_timeout.c:685 #15 0xffffffff8095fd04 in softclock (arg=0xffffffff8169dc00) at /usr/src/sys/kern/kern_timeout.c:814 #16 0xffffffff809158eb in intr_event_execute_handlers ( p=<value optimized out>, ie=0xfffff801102e0d00) at /usr/src/sys/kern/kern_intr.c:1264 #17 0xffffffff80915d36 in ithread_loop (arg=0xfffff801102adee0) at /usr/src/sys/kern/kern_intr.c:1277 #18 0xffffffff8091343a in fork_exit ( callout=0xffffffff80915ca0 <ithread_loop>, arg=0xfffff801102adee0, frame=0xfffffe1760bc1c00) at /usr/src/sys/kern/kern_fork.c:1018 #19 0xffffffff80d431ee in fork_trampoline () at /usr/src/sys/amd64/amd64/exception.S:611 #20 0x0000000000000000 in ?? () [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQEcBAEBCAAGBQJV+9V4AAoJEIhV+7FrxBJD2rEIAINp8YBskB9qo+Ejc8qL9XM4 8nYbaQE3nvYiKQlw0xOFLkZP2qDEH0a2cZ4slOn37YuaMWIik5LXAT3Dd/AARRdl OMdaXx3jCMhJ+MfAzMP8XeB186j07z7V81KVsnjoAnbQcFgJtFvjET9fM20Nbuvq LXnXXWn/ZQWKXOcPe/k1g3wj+7Psjy6FHS5oskqWg3EkA7qMkXZ3ebGI3NmJgwvj LkJaE2aj2ykRl87nCj0kV0pU/gDNeUEra4POL0tXgQNlYiOFB64CW13leflw5vYh vJTCKQVvnKm0TyXBu1IlUdcgexm1RcKqsBXSh60mPEBEKoQo+3zfVS6WIfaAE7I= =IUS0 -----END PGP SIGNATURE-----
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